Federal contractor profile
HELLMUTH, OBATA & KASSABAUM, INC.
UEI CQJLYUAF62J3CAGE 3JYX6Company website ↗
Active
Overview
- Legal name
- HELLMUTH, OBATA & KASSABAUM, INC.
- Registered location
- SAINT LOUIS, MO, USA
- Website
- Company website ↗
- Primary NAICS
- 541310 — Architectural Services
- Latest award activity
- Sep 2, 2026
Read company summary
HELLMUTH, OBATA & KASSABAUM, INC. is associated with UEI CQJLYUAF62J3 and CAGE 3JYX6 in public federal records. AcornBids currently links 7 prime awards totaling $40.3M in obligations to this entity. Its largest recorded federal customer by obligations is General Services Administration. Its recorded federal awards include work classified as Architectural Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541310 (Architectural Services). Its public SAM.gov registration lists SAINT LOUIS, MO, USA.
At a glance
Lifetime prime obligations$40.3M
Prime awards7
Awards with future end dates5
Top-agency concentration
Not available
Why this customer concentration
Detailed agency totals are not available in this stored profile.
Largest positive coded-agency total ÷ all positive coded-agency totals × 100
Missing data is shown as unavailable.
Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Oct 8, 2026. Refresh pending; these totals may be out of date.
Business information
Public SAM.gov registration details.
- Legal name
- HELLMUTH, OBATA & KASSABAUM, INC.
- UEI
- CQJLYUAF62J3
- CAGE
- 3JYX6
- Registered address
- 701 MARKET ST STE 400, SAINT LOUIS, MO, 63101, USA
- Registration status
- Active
- Primary NAICS
- 541310 — Architectural Services
- SAM activation
- Dec 18, 2025
- Initial registration
- Oct 3, 2003
- Entity start
- Sep 5, 1995
- SAM updated
- Dec 18, 2025
- Registration expires
- Dec 11, 2026
- Fiscal year end
- Dec 31
- Place of incorporation
- MO, USA
Research brief
Source facts
- Loaded prime-award records link 7 awards and $40,344,310 in reported obligations to this legal entity. Source
- Recorded awards include Architectural Services (NAICS 541310); this classification is not proof of every company capability. Source
- An example award describes: ARCHITECT-ENGINEER SERVICES FOR THE FRANK E. MOSS SEISMIC UPGRADE, BACKFILL AND MODERNIZATION PROJECT LOCATED AT 350 SOUTH MAIN STREET, SALT LAKE CITY, UT 84101 Source
Federal award analysis
Net transaction obligations by federal fiscal period.
Selected transaction obligations$36.0M
Prime contracts
Reported transaction obligations by federal fiscal period; includes deobligations. Missing transactions are not estimated. Coverage: 7 of 7 selected awards. Select a period to explore its awards.
Recent federal awards
Prime contract awards. Select an award to review its history and source evidence.
| Award / description | Awarding agency | Obligations | Start date | End date |
|---|---|---|---|---|
| 47PJ0020C0079ARCHITECT-ENGINEER SERVICES FOR THE FRANK E. MOSS SEISMIC UPGRADE, BACKFILL AND MODERNIZATION PROJECT LOCATED AT 350 SOUTH MAIN STREET, SALT LAKE CITY, UT 84101 | General Services Administration | $15.3M | Aug 5, 2020 | Nov 10, 2026 |
| 47PE0525C0001LEAD DESIGN ARCHITECT NEW UNITED STATES COURTHOUSE IN CHATTANOOGA, TN | General Services Administration | $17.5M | Apr 15, 2025 | May 22, 2031 |
| 47PE0324F0012HURRICANE REPAIR PROJECT, GEORGE C YOUNG FB & CH, 400 W. WASHINGTON ST., ORLANDO, FL 32801 & ANNEX U.S. CH, 401 W. CENTRAL BLVD., ORLANDO, FL 32801 ORLANDO ANNEX U.S. COURTHOUSE… | General Services Administration | $2.9M | Aug 19, 2024 | Nov 30, 2026 |
| 47PM0224F0013A/E SERVICES 2ND & 3RD FLOOR RENOVATIONS, ONE WHITE FLINT NORTH BUILDING, 11555 ROCKVILLE PIKE, ROCKVILLE, MD 20852. | General Services Administration | $2.6M | Jul 22, 2024 | Jun 13, 2028 |
| 47PF0025F0701FURNITURE DESIGN SERVICE AWARD AND RELATED SERVICES, THE US NUCLEAR REGULATORY COMMISSION, AT 245 PEACHTREE CENTER AVE NE ATLANTA, GA 30303-1222. | General Services Administration | $165.5K | Aug 19, 2025 | Nov 30, 2026 |
| 47PM0923F0062WEAVER BLDG WRR AND FS | General Services Administration | $1.6M | Sep 7, 2023 | Apr 30, 2025 |
| 47PH0824F0010ARCHITECT ENGINEERING SERVICES TO DESIGN REGION 7 HEADQUARTERS 12TH FLOOR SPACE, FORT WORTH, TEXAS | General Services Administration | $299.2K | Feb 27, 2024 | Apr 3, 2025 |
Upcoming positioning windows
Modeled recompete windows are estimates, not announced solicitations or guarantees.
Registration, certifications & contacts
| Registration evidence | Date |
|---|---|
| SAM updated | Dec 18, 2025 |
| Source loaded | Sep 26, 2026 |
| Initial registration | Oct 3, 2003 |
| Entity start | Sep 5, 1995 |
| Industry | Reported size status |
|---|---|
| 541310 — Architectural Services | Not reported |
| 541320 — Landscape Architectural Services | Not reported |
| 541330 — Engineering Services | Not reported |
| 541350 — Building Inspection Services | Not reported |
| 541410 — Interior Design Services | Not reported |
| 541430 — Graphic Design Services | Not reported |
| 541490 — Other Specialized Design Services | Not reported |
| 541611 — Administrative Management and General Management Consulting Services | Not reported |
| 541618 — Other Management Consulting Services | Not reported |
| Contact | Role | Published contact methods | Evidence | Source date |
|---|---|---|---|---|
| RICH CHEN | Government business | Contact method not published | SAM registration | Not available |
| BARB ANDERSEN-KERLIN | Alternate government business | Contact method not published | SAM registration | Not available |
| RICH CHEN | Electronic business | Contact method not published | SAM registration | Not available |
| BARB ANDERSEN-KERLIN | Alternate electronic business | Contact method not published | SAM registration | Not available |
Registered industries
- 541310 — Architectural Services
- 541320 — Landscape Architectural Services
- 541330 — Engineering Services
- 541350 — Building Inspection Services
- 541410 — Interior Design Services
- 541430 — Graphic Design Services
- 541490 — Other Specialized Design Services
- 541611 — Administrative Management and General Management Consulting Services
- 541618 — Other Management Consulting Services
Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source
Reported subsidiary tree
Ownership follows reported parent UEIs.
- HOK GROUP, INC.UEI FPEUX79J9DM8
- HELLMUTH, OBATA & KASSABAUM, INC.UEI CQJLYUAF62J3
- HELLMUTH, OBATA & KASSABAUM, INC.UEI PX6CQE8DM8K3
Corporate family
Reported ownership links. Award and funding explorers can include this family.
| Legal entity | Reported parent UEI | Source loaded |
|---|---|---|
| HOK GROUP, INC. | — | Aug 15, 2026 |
| HELLMUTH, OBATA & KASSABAUM, INC. | FPEUX79J9DM8 | Sep 26, 2026 |
| HELLMUTH, OBATA & KASSABAUM, INC. | FPEUX79J9DM8 | Sep 26, 2026 |
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About HELLMUTH, OBATA & KASSABAUM, INC.
What products and services appear in its federal awards?
Recorded award industries: 541310 — Architectural Services.
Recorded products and services: C1AA — ARCHITECT AND ENGINEERING- CONSTRUCTION: OFFICE BUILDINGS; C211 — Architect - Engineer Services (including landscaping, interior layout, and designing); C213 — A&E Inspection Services (non-construction).
Examples from recent award records:
- ARCHITECT-ENGINEER SERVICES FOR THE FRANK E. MOSS SEISMIC UPGRADE, BACKFILL AND MODERNIZATION PROJECT LOCATED AT 350 SOUTH MAIN STREET, SALT LAKE CITY, UT 84101
- LEAD DESIGN ARCHITECT NEW UNITED STATES COURTHOUSE IN CHATTANOOGA, TN
These records describe federal award work, not every company capability. Review the award evidence.
Where is the company registered?
701 MARKET ST STE 400, SAINT LOUIS, Missouri 63101, United States
Registered location from SAM.gov; award performance locations may differ.
What is its primary registered industry?
541310 — Architectural Services.
Primary SAM.gov NAICS classification.
Which federal agencies are represented in its awards?
General Services Administration.
Data coverage and methodology
Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.
Disclosed relationships only. Missing records do not establish that a contractor has no partners. Ambiguous parent award identifiers are excluded.
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